Interesting observation Gangolf, but it is not connected. For knowing a bit the origin of some words in the etymology of the Pyrenees I can give a guess which I believe to be almost sure.
Mailh means a prominence (like Mailh Massibé), a summit. There is a similar word in Spanish, "Mall" (like Mall Pintrat) or Mallos de Riglos. I'm sure there are hundreds of orthographic variants, that's remains of old Occitan local dialects. I guess in this case Mallet designates a mall prominence and Diego is probably true too despite I never saw this name so far.
The other name Diente is the only translation of "dent" in Spanish which does make sense.
"Fausse Brèche" because there is the "real Brèche" and it's easy to confuse these two similar but distinct places in poor visibility.
p.s: seen Selinunte01's last page about La Tour ? (just few hundred meters from that picture)

I always found this topic (names in different languages) very fascinating. At least you now explained why some peak near Luchon is called Mail Something. The rest is clear to me as Spanish and French aren't too different from a German viewpoint :-)

Yes, I saw Michael's page, though when I was there I didn't see too much of La Tour. The only day with real clouds ...

Oui, c'est un doigt. On the other side of the border it might be more likely to be "dido", which is the Fabla (local langauage) word for finger, rather than anything in Spanish. But be careful, you will irritate Diego if you don't go with the language of Madrid ;-)

True, I thought of it after-while, it's called also doigt. Everything to designate something prominent is good !
As for etymology I've got a Word document I compiled some time ago with a sort of dictionary of most name parts found across the Pyrenees, with translations into modern languages of both sides of the range. I may publish it one of these days as an article with the English column as well.

It is really cool to see so many SPers visiting the same area I love in such short lap of time and sharing their impressions about it (Tomek also was on the Spanish side, just under "La Brecha", see his last album). The Pyrenees are getting now more and more represented on SP with quality contributions...

Very nice pic. Have you got to climb the rock to bag the peak? :)
I wonder if there's any connection with the Albanian word 'mali', e.g. Mali Zi in Albanian means Montenegro (Black Mountain), or e.g. this mountain (I think both 'maja' and 'mali' can mean 'peak' or 'mountain' in Albanian but in this language I can only say hello and thanks and ask for directions or where I can find water :)
cheers,
Kamil

No idea about Albanian (the only Maja I'd like to meet is Maja Wloszcsowska ! :)
But there is one point in which you are touching the truth, there are connections with Basque language and Slavic languages. You don't find it funny that "Gura" designates a hill and "Ereka" a river in Basque ? :)